{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:HONUUIL5OJMG7PXAPZWBT7NFFC","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1beed925de39828b2050c9f00ab8c0e1c7c3adc222fe00235fa17a8041a5a0b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-12T14:04:46Z","title_canon_sha256":"190cb7989a5e78a0d5954c57998e9f723f6d37fa7c68f6845080d51e1418c9ad"},"schema_version":"1.0","source":{"id":"1706.03647","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.03647","created_at":"2026-05-17T23:55:09Z"},{"alias_kind":"arxiv_version","alias_value":"1706.03647v1","created_at":"2026-05-17T23:55:09Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.03647","created_at":"2026-05-17T23:55:09Z"},{"alias_kind":"pith_short_12","alias_value":"HONUUIL5OJMG","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_16","alias_value":"HONUUIL5OJMG7PXA","created_at":"2026-05-18T12:31:18Z"},{"alias_kind":"pith_short_8","alias_value":"HONUUIL5","created_at":"2026-05-18T12:31:18Z"}],"graph_snapshots":[{"event_id":"sha256:98dec32d1cf2d015e1a8bc47f053a7b83d8d9cabefc5bf08500dbea87d3dd92b","target":"graph","created_at":"2026-05-17T23:55:09Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"OB stars exhibit various types of spectral variability historically associated with wind structures, including the apparently ubiquitous discrete absorption components (DACs). These features have been proposed to be caused either by magnetic fields or non-radial pulsations. In this second paper of this series, we revisit the canonical phenomenological hydrodynamical modelling used to explain the formation of DACs by taking into account modern observations and more realistic theoretical predictions. Using constraints on putative bright spots located on the surface of the O giant $\\xi$ Persei de","authors_text":"A. David-Uraz, G. A. Wade, J. O. Sundqvist, N. D. Kee, S. P. Owocki","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-12T14:04:46Z","title":"Investigating the origin of cyclical wind variability in hot, massive stars - II. Hydrodynamical simulations of co-rotating interaction regions using realistic spot parameters for the O giant $\\xi$ Persei"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.03647","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e26a0efe33f9086d0251ffea206d7487436bd0b7aac7d8100f79dc2eb9f6674c","target":"record","created_at":"2026-05-17T23:55:09Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1beed925de39828b2050c9f00ab8c0e1c7c3adc222fe00235fa17a8041a5a0b9","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2017-06-12T14:04:46Z","title_canon_sha256":"190cb7989a5e78a0d5954c57998e9f723f6d37fa7c68f6845080d51e1418c9ad"},"schema_version":"1.0","source":{"id":"1706.03647","kind":"arxiv","version":1}},"canonical_sha256":"3b9b4a217d72586fbee07e6c19fda52888a352412cd08096b7fde3580ca1279a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3b9b4a217d72586fbee07e6c19fda52888a352412cd08096b7fde3580ca1279a","first_computed_at":"2026-05-17T23:55:09.831577Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:09.831577Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"V+fWjZzIxHINmCCwHDUFOqf8zgSQmCbZoiWOPWo5eN9Ua3ttc4rS78blpib0ylnA7WzKSyEJdM4Z1kLX2AcdBQ==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:09.832224Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.03647","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e26a0efe33f9086d0251ffea206d7487436bd0b7aac7d8100f79dc2eb9f6674c","sha256:98dec32d1cf2d015e1a8bc47f053a7b83d8d9cabefc5bf08500dbea87d3dd92b"],"state_sha256":"1802f1c1ac9daea7f96da4040cb9b22b80697b7be6ce6a244d9f2298cd63ca44"}